Robot 322

Conjet Robot 322 is the smallest Robot in our range for fast, selective, vibration free removal of damaged concrete from horizontal, vertical and over-head surfaces. This small Robot opens up new areas for mechanised concrete removal and replaces the manual methods like hand lancing with water jet and jack hammering. The design is very compact and it has been developed to work in confined spaces and areas inaccessible to larger hydrodemolition machines. The Robot passes easily through a 0.9 m (3ft) wide opening, depending on the attachment mounted.

The exceptional manoeuvrability of Robot 322 makes it the perfect machine for operations in confined areas like a culvert, access tunnels, inside concrete box girders, under a harbour deck as well as on regular bridge deck and parking decks but with less production than our other range of robots. The low weight, evenly distributed via the tracks, makes the Robot 322 working safe and easy on platforms and scaffoldings.

Fitted with the optional hydraulically driven rotor head the Robot is ideal for surface preparation such as scarifying concrete, removing membrane or steel surfaces, like ship hulls or decks.

Design
The Robot 322 consists of a self contained, crawler mounted undercarriage, electrically 7.5 kW (10hp)powered with an integral control system. This allows progress of the hydrodemolition process to be remotely and safely controlled and monitored away from the hazardous cutting area. The track width is adjustable to improve stability, when needed. The speed of each track can be independently adjusted to avoid deviation when working along walls.

The Robot is equipped with a single oscillating nozzle. The nozzle, which can be set at different angles of attack, is mounted on a traversing cradle running back and forth along a 1.5m (5ft) long feed beam. Safety is paramount which is why the entire nozzle assembly is covered by a protective shroud. The feed beam is attached to an arm mounted on a rotating turntable fixed to the Robot's crawler based under-carriage.

PLC controlled control system
The operation is monitored from a safe location at the back of the Robot. From this position all parameters are set and speeds adjusted, so there is no need to climb up the cutting head to adjust the cutting width and whatever you set yesterday is remembered today.

The remote control box is used to manoeuvre all functions of the Robot. This includes the positioning of the cutting head, tracks and boom system. Automatic operation commences by pushing the appropriate button.

Speed and revolutions are set from a small panel at the back of the Robot next to a small operator's terminal. The terminal provides the operator with information of the ongoing work.

Recommended for whom?
Contractors that would like to invest and use the technology but finds the existing alternative to be a too large investment or existing customers with the intention to expand the utilisation of hydrodemolition technology with work at smaller sites and in confined areas.

Features

• Low weight to operate on platforms, scaffoldings and inside inaccessible chambers and tunnels.
• Easy to operate
• Replaces dangerous hand lancing and jack hammering in confined areas.
• Out performs hand lancing.
• Electrical driven in order to protect the operator from exhaust.
• Remotely operated.
• Lower investment than larger and existing hydrodemolition machines.
• See additional features in the hydrodemolition method.

Power and reaction force
The Powerpack, high pressure water pump, recommended for the Robot 322 to be used are Powerpacks rated 200 kW (270 hp) up to 400 kW (540 hp) as long as the allowed reaction force is not exceeded. The maximum reaction force Robot 322 is designed for is 1400N (Newton) which is equal to 190 l/min. (50 US gal/min.) at 1000 bar (14500 psi) or 160 l/min. (42 US gal/min.) at 1400 bar (20300 psi).

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